Snubber



Aug. 29. 1933. c TEA I 1,924,470

' SNUBBER Filed Nov. 25. 1929 INVENTOR Czar/r 720 A TT ORNE Y menacing. 29', was 1 ,924,470

, it u smj JB B RT it u Clark-A. 're nemie'men, assignor t6 chm:

ler Corporation, Detroit, Mich'., a corporation of ,Delaware i gApplication November '23; 1929 Serial No. 409,494 A i ll'cl aims. .(o1. 1ss ,13o);, L m The main objeets of this inventio nlgarefto ih er.pr;bhry of the casing-"'1 isprovided a 1 provide improved vehicle snubbers which'will gradually arrestjthe rebound of a :ve hicle that follows compression of the sp ring;;upo n which it is supported; to provide means of thiskind;

which will not interferewith'the normalt'cus hioning action of the 'springsmduring downward movement of the vehicle body "relative to the axle'of the vehicle; to provide improv 'ed snubbers upwardly from its normal position; to provide means of this kind i i-which the initial frictional resistance to relative movement of the bodyiand axle is materiallyreduced as the bodyismqv'ed toward the, axles upon which it is supportedy and to provide an improved structure ier yield ably supporting andfrictionally gripping that n is shown in the accompanying drawing; in which;

Fig. 1 is a side elevation of a-snubber emb invention, in

2 is a side elevation similar to llwith 35 the cover andcrank arm removed. i y

a Fig. ,3 a. horizontalsection taken 3-3 of Fig. 2.

Fig. em a side elevation showingamodified,

form of my invention,

Fig. 5 is a diagrammatic, fragmenta y, side elevation of a front endvportion afa vehicle which is equipped with my improved 'snubbers.

' h $3591 {341d 9 2' i ubs an y l l r. 4

.mergedinthelubricant;anairtight seal isably} suspended from the interior structure; of

the casing so as to 'allow rotation of, the crank and bodily movement thereof relativetqthe case ring; The interior of the casing is filled with a ,su itable lubricant which protects the engaging, surfaces of the shaft and bearing against moisture. g In the illustration shown the casing lgcomprises side flanges 2 by which it is rigidly seshaft is applied thereon bjy the loop 8;

n with Msuitableilubriciant suche-as-a mixture of 2 0%-g1 aphite, in ordinary; cylinder oil. The

"e fine space between thelexternal end 16 oftthe shaft shaft and of the boss; 1 n v The spring 6 has a substantially cylindrical loop 8 formed at its free-endfandtheextremity diameter of the loop 8 is somewhat smaller than a an initial frictional resistance to rotation of the A co'v r l4 threaded on -the side of the isprovided withan' aperture l5 for receiving the movement'of the shaft and crank arm relative to the casing Pro'vided'hn the-periphery of the casing 1-. is a nlubricantlinlet valve 17 through 10 in which the bearing surfaces between relatively' 9 0f the looped end of thespr ing spaced rom 355' movable parts aretightly sealed against exposure the intermediate portion thereof so as to permit to water and atmospheric conditions so asto ont t n 1 t 91 I 1 e produce uniform andbalanced resistance to re- 'J urna led h 09 3 i ql hi h bound at the various partsof a vehicle :body. v xtendsvoutwardly'f '0mthecaSing la d hasia 5 1 Fu t i t flo r m a c. r w a m 11 vwwmdfi t ri na sn 7o vide improved means in a device of this kind by a'bolt 12, The shaft IO haS -a head of by for applying an initial frietional'resis'tance to which it is he d againstdi pl em n and a spiral upward rebound when the I'vehicle body ,is atrest g 13 l' d i p ph y f fl dmit with respect to the axles, and gradually increasng lubri n t h? arin rfac s' f, h a

ing the frictional resistance as the body is urged l nand' s a t r p t v e inner or the diametero f the shaft lOland'as'fa result a e- 5 mnw a t 'Thw ecure} 1 ]1 5 is substantially" larger inlidiam g .m the external, end 16 of the shaft and it permitsb d y which" the interior;otqthefcasing may be filled cover lan d the adiacentend of the 10 0p 8 The lubricant isthus confined ,in the -casing and as vicled j for protecting the bearing surfaces ofrthe W e aa i o ph flq 'qrld ions-a PQP re e iv i m e ure 05 2 In operation, the free end 19 ofthecc rank i? :11 is pivotally connectedjwith an. axle;12';of a vehicl'e,jas illustrated in -F ig. 5 -so thatas the u 10 a Y the ,axle thereof against the-action of-thesup-ff port n sp in 1810f the v hicle. u wh h t e f 1 chassis frame 3 of the; vehicle 'is-Yurged towards chassis frame is mounted, the'crank arm 11 and shaft 10 are rotatedina clockwise direction as r. -i cured to a chassis frame 3 by bolts-ajOn the viewedin Fig; 1. The'clockwise rotationof the, P n

the innermost convolution, the innermost-com,

portrigidly mounted in said housing eompris-f, ing aspring having a substantially cylindrical loop at, one end for rotatably supporting said shaft, the extremity of the looped end of said spring being spaced from the intermediate part thereof for allowing contraction of said loop,

said loop being adapted to frictionally grip said shaft when said parts 'of the vehicle are urged away from each other, and to release said shaft portion in, an opposite direction.

volution offsaidcoiled resilient member being adapted togrip said shaft'during' rotation of thejlatter in one direction and to release saidshaft during rotation thereof in the opposite: di

rection.-

11. In apparatus forcontrolling relative movement of a-pair of bodies, means securable toone otSaidbodies including an journal portion and a support securable to the other body including support 'and having'a free end portion coiled Y about said journal portion and normally having 3 an inherent self-energized prehensile grip upon f v V the latter, said resilient1elementbeing adapted v to increase its grip upon said journal portion during'rotation thereof in one direction and to Journal r decrease-its grip during rotation ot said hoe 7.

I85, "a resilient elementhaving one end fixed to said 3 

